14.7Teeth shape

“C” TYPE SHARPENING (HZ)

Coarse toothing with roughing tooth raked on both sides and non-raked finishing tooth. The roughing tooth is about 0.3 mm higher.

Coarse toothing with roughing tooth and finishing tooth. Used in saws with pitch greater than or equal to 5 mm for cutting ferrous and non-ferrous materials with solid or solid-profiled sections.

Figure 15

“BW” TYPE SHARPENING DIN 1838--UNI 4014

Coarse toothing with teeth alternately raked to the right and left.

Toothing generally used on cut-off machines for cutting ferrous and alloy materials with tubular and profiled sections.

Figure 16

POSITIVE AND NEGATIVE CUTTING ANGLES

The cutting angle may vary from positive to negative depending on the cutting speed, the profile and the type of material to be cut.

A positive angle determines better penetration of the tool and hence lower shear stress and greater ease of sliding for the swarf over the cutting edge. On the other hand, the cutting edge has lower mechanical resistance, so that as the breaking load of the material to be cut increases, the cutting angle decreases from positive until it becomes negative, thus offering a cutting edge with a larger resistant section.

Figure 17

Short swarf material such as brass, bronze, aluminum and hard cast iron require smaller cutting angles because the swarf becomes crushed immediately and the rake angle has little effect during the cutting stage.

The cold saws use discs with positive cutting angles for cutting solid materials and with negative cutting angles for cutting hollow profiles. This is because, as a result of the high cutting speeds, even with non-ferrous materials the tool ”strikes” against the wall of the profile to be cut several times, thus requiring a cutting edge with a larger resistant section.

Figure 18

Circular saws can also be characterized by other parameters such as the whine reduction feature, which cuts down noise at high speeds, or expansion, which compensates for the pushing of chips inside the cutting edge, thus reducing the thrust on the walls of the material to be cut.

Figure 19

15

Page 14 Page 16
Page 15
Image 15
Jet Tools CS-315, CS-275 operating instructions Teeth shape
Page 14 Page 16

CS-315, CS-275 specifications

Jet Tools has a long-standing reputation for delivering quality woodworking and metalworking machinery, and their CS-275 and CS-315 bandsaw models exemplify that commitment to excellence. Designed with both professional woodworkers and hobbyists in mind, these saws are engineered to provide precision, power, and ease of use.

The CS-275 features a robust design that includes a heavy-duty cast iron frame providing stability and reducing vibration during operation. This enhances the accuracy of cuts. With a 2.5 HP motor, the CS-275 delivers ample power for most woodworking tasks, enabling users to tackle various materials, from softwoods to hardwoods. Its easy-to-read scale and quick blade change system make blade adjustments seamless. The saw blade can accommodate a range of widths, allowing users to switch between intricate cuts and larger operations without hassle.

On the other hand, the CS-315 takes it a step further with a 3 HP motor, catering to those who need more power for demanding projects. This model boasts an extended cutting capacity, which is perfect for larger workpieces. The dual table support system ensures maximum stability, while the integrated dust collection port helps maintain a clean work environment by minimizing debris and sawdust.

Both models incorporate Jet's advanced technology that prioritizes user safety and comfort. Features such as an oversized handwheel and a precision tensioning system allow for easy adjustments of the blade, ensuring optimal performance. The CS-275 and CS-315 are equipped with high-quality bearings and a precision ground cast iron table that provides a smooth surface for cutting, enhancing performance and longevity.

Additionally, these bandsaws share a common feature: a large viewing window that allows users to monitor their cutting line easily. This ensures that every cut is precise and increases overall productivity. The saws also come with a solid standard warranty, underscoring Jet Tools' confidence in their durability and quality.

In summary, whether you choose the CS-275 or the more powerful CS-315, Jet Tools offers robust construction, innovative technologies, and user-centered design. Both models are excellent additions to any workshop, providing reliability and performance that professionals and enthusiasts alike will appreciate.
Top Page Image Contents